Hook and lock assembly



F. D. KALLENBERGER 6 HOOK AND LOCK ASSEMBLY July 27, 1937.

Filed Sept. 28, 1936 2 Sheets-Sheet l 1n won for Z r'eJeI/ Z6 [lei/561' e/ Aftorneys July 1937- F. D. KALLENBERGER 2,088,136

HOOK AND LOCK ASSEMBLY Filed Sept. 28, 1936 2 $heets5het 2 j, I! (l lZZIJLZ'J: :1 f I I o H72 9' 2? 28 o l l j mm m 3 Wau- JLI V 1/ LL: IF? 'z 7g,

Inventor A iiorneys Patented July 27, 1937 UN-TE STATES PATENT Oii' HOOK AND LOCK ASSEMBLY Frederick D. Kallenberger, Buckeye, .Ariz.

Application September 28, 1936, Serial No. 103,035

6 Claims.

' 10 cooperating with a lock, or to construct a special manually regulated locking unit for such a hook. In keeping with the trend of progress in this particular line of endeavor, however, I have perfected a combination hook and lock arrangement 15 possessed of appreciable distinctions and refinements more aptly fitted for the purposes intended and such as to justify its recognition and endorsement as a worthy contribution to the art. One feature of the invention has to do withthe pivoted wire-type hook whose bill portion is provided with a ball-like detent susceptible of adequate cooperation with the special locking means with which it is associated.

Of outstanding importance, however, is the Q5 key-controlled lock and especially the internal mechanism thereof perfected with a view toward functioning as a temporary spring-pressed keeper means, or permanently as hook and door locking means. 7

Other features and advantages will become .more readily apparent from the following description and drawings.

In the accompanying drawings, wherein like numerals are employed to designate corresponding elements or parts throughout the views:

Figure 1 is afragmentary elevational view of a screen door and its frame showing the improved door latching hook and the special looking device or unit with which it is cooperable.

Figure 2 is an elevational view of the locking device showing the external appearance of the casing and the keyhole slot.

Figure 3 is a top plan view thereof showing the concavity designed to facilitate piloting the ball-like detent on the hook into the lock casing.

Figure 4 is an elevational view with the cover plate removed exposing the internal mechanism constructed in accordance with my personal ideas. Figure 5 is a View like Figure 4 showing how the toggle mechanism and keeper members are actuated to lock the spring-retracted latches in closed position.

Figure 6 is a perspective view of the hook per se.

55 Referring now to the various views of the drawings by consecutively used part distinguishing reference numerals, and directing attention to Figure 1, it will be observed that the screen door is indicated at l' and the door frame at 8. An ordinary screw eye 9 is provided to fasten the: complemental eye It on the shank H of the hook l2 in place. The hook as shown in Figure 6 is ordinary except that the hooked or laterally directed free end I3 is provided with a ball-like terminal which constitutes the retaining element or detent I4.

The lock is distinguished by the numeral l5 and comprises a substantially rectangular hollow casing l6 and the removable cover plate ill. The

numerals l8 designate openings through which suitable fastenings such as wood screws or the like are employed to secure the lock on the door frame 8. The, numeral l9 represents a keyhole slot to accommodate the shank and bit of an ordinary key (not shown). It might be stated, 7 however, that the key used is of course adapted to this particular type of a lock.

, Attention is directed to Figure 3 in conjunction with Figures 4 and 5', wherein it will be observed that the top of the lock casing is formed with a cavity or recess 20 having complemental downwardly and inwardly converging surfaces 2i leading to or registering with the hole 22 through which the retaining ball It is dropped into the casing for cooperation with the internal mechanism. These surfaces 2| serve to guide or pilot the ball l4 into the hole 22, thus providing the desired finder means forming a novel feature of coaction between the hook and the lock.

Calling attention now to Figure l, it will be observed that a pair of block-like slides 23 are mounted horizontally in the upper portion of the casing and are disposed in alignment and opposed relationship. The inner adjacent ends are formed with semi-spherical notches 2 5, which, when brought together, provide thedesired keeper seat for the keeper head or ball i i. These members 23 may be described as spring-pressed, reciprocatory latch bolts, the springs being indicated by the numerals 25. The numeral 26 designates slots cooperable with check or stop pins 21 to limit the inward sliding movement of the latch bolts and to insure proper cooperative registry of the two notches 24. Adjacent to the notches it will be observed that the latch bolts are provided with beveled surfaces 28 which are in effect cams.

Hence, by dropping the ball M on the hook into and by a slight downward pressure, forces the spring-pressed latch bolts apart so that it is properly gripped between the coacting ends of the said latch bolts.

The means for locking the latch bolts in the set position shown in Figure is key-controller. It includes a toggle joint arrangement embodying pairs of conjointly connected toggle links 29, these being connected with a connecting bar or tie plate 39 which is in effect a projectable and retractible follower. This follower member 39 serves to raise and lower the slidable locking bolts M. The locking bolts are at right angles to the latch bolts 23 and move up against the outer ends of the latch bolts, as shown in Figure 5, under certain conditions 'to prevent separation of the latch bolts and to retain the ball i l firmly therebetween. The toggle links are controlled through the instrumentality of eccentric links 32 eccentrically connected to the oscillatory key-operated disk 33. This disk is provided with an outstanding stud 3'3 with which the bit on the regulation key (not shown) is engageable. The concentric stud 35 is merely to accommodate the shank of the key. Incidentally, the shank of the key is tubular and the open end thereof slipped over the pin 35 when the shank and bit is passed through the keyhole slot l9 as shown in Figure 2. Thus, we have a key-controlled disk having operating connection with the toggle members which control the movement of the follower plate and the locking bolts 3!.

When the structure is unlocked, as shown in Figure 4, it is evident that the slidable latch bolt 23 merely serves as spring-pressed temporary keeper means for the head it of the hook 552. That is to say, the head can be dropped through the adapter opening 22 whereby it can be pressed down against the cam surfaces 23 to force the latch bolts apart against the tension of the springs 25. Then the springs force the latches back holding them releasably engaged with said head M. By placing the finger underneath the shank ii, the hook can be lifted up and readily disengaged from the latch bolt. Here again the head M functions as a cam to spread the latch boit apart so that it is in effect not only a keeper, but a spreader for the latch bolt. When it is desired to lock the latch bolt in place, the key is inserted and the toggle mechanism is operated from the position shown in Figure 4 to that shown in Figure 5, whereupon the bolts 3! slide up and engage the latch bolts to prevent them from spreading.

This progressive temporary latch and lock arrangement provides a novel fastener selectively usable for the hook l2. Consequently, the structure can be used as a daytime latch for the hook or as a nighttime lock to guard against unauthorized opening of the hook.

It is thought that the description taken in connection with the drawings will enable a clear understanding of the invention to be had. Therefore, a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is be understood that minor changes coming within the field of invention claimed may be resorted to if desired.

I claim:

1. In a hook and lock assembly of the class described, a hook provided with means for pivotally attaching it to a door or the like and provided at one end with a laterally directed portion terminating in a ball-shaped retainer, and a lock including a casing having locking and latching means in said casing, said casing being provided at one end with a recess forming a pocket into which said ball retainer may be dropped, said pocket having at its center an opening through which the ball retainer is adapted to pass into the casing for cooperation with the latching means therein.

2. In a structure of the class described, a lock including a casing, a pair of spring-pressed latch members slidably mounted in said casing, locking bolts slidably mounted in said casing and engageable releasably with the outer ends of said latch members, and key-controlled toggle actuating means for said locking bolts also mounted in said casing.

3. In a structure of the class described, a lock including a casing, a pair of spring-pressed latch members slidably mounted in said casing, locking bolts slidably mounted in said casing and engageable releasably with the outer ends of said latch members, key-controlled toggle actuating means for said locking bolts also mounted in said casing, and including pairs of duplicate toggle links, a tie bar between the pairs of links, said tie bar being engageable with the adjacent ends of said locking bolts.

i. In a lock of the class described, a casing, a pair of opposed slidable spring-pressed latch members mounted in said casing, a pair of locking bolts at right angles to said latch members slidable in said casing and engageable at will with the outer ends of said latch members, a bar movable in said casing and engageable at its ends with adjacent ends of said locking bolts, pairs of toggle links mounted in the casing and operative- 'ly connected with the ends of said bar, a keycontrolled oscillatory disk mounted in said casing, operating connections between the disk and pairs 'of toggle links, and a key actuable stud eccentrically mounted on said disk in the manner and for the purposes described.

5. In a hook and lock assembly of the class described, a hook provided with means for pivotally attaching it at one end to a door or the like and provided at its opposite end with a laterally directed portion terminating in a ballshaped retainer, a combined lock and latch structure including a casing, one end of said casing being provided with a cavity forming a pocket,

said pocket being gradually increased in depth toward its center and provided at its center with an opening through which the ball-shaped retainer may be dropped into the interior of the casing, anda pair of aligned spring pressed com- 7 panion opposed latch bolts slidably mounted in matching relation in the casing, said latch bolts having their inner adjacent ends formed with semi-spherical notches adapted for reception therebetween of said ball-shaped head and adapted to register with said cavity opening, in a manner to facilitate ready connection and disconnection of said ball-shaped head with said spring pressed latch bolts.

6. In a hook and lock assembly of the class described, a hook provided with means for pivotally attaching it at one end to a door or the like and provided at its opposite end with a laterally directed portion terminating in a ball-shaped. retainer, a combined lock and latch structure including a casing, one end of said casing being provided with a cavity forming a pocket, said pocket being gradually increased in depth toward its center and provided at its center with an opening through which the ball-shaped retainer may be dropped into the interior of the casing, a pair with said cavity opening, in a manner to faciliof aligned spring pressed companion opposed tate ready connection and disconnection of said latch bolts slidably mounted in matching relaball-shaped head with said spring pressed latch tion in the casing, said latch bolts having their bolts, and key controlled mechanical locking inner adjacent ends formed with semi-spherical means mounted in said casing and releasably en- 5 notches adapted for reception therebetween of gageable with said latch bolts.

said ball-shaped head and. adapted to register FREDERICK D. KALLENBERCEER.v 

